Hose-coupling.



o. C. SGHULTZ.

HOSE GOUPLING.

APPLIUATION FILED 1520.16, 1911.

I Patenfjed Aug.20,1912.

ins'rrnn sfrafrns ragen@ cerros.

CARL C. SCHULTZ, GF VICTOR, IVV'A.

HOSE-GOUPLING.

spcification of Leners raient.

Patented limo". 20., 1912 Application :ned December is, 191i. serial no. 666,176.

To all whom it may concern:

Be it known that Victor, in the count-y of Iowa, State of Iowa, have invented certain new' and useful 1inprovements in l--lose-Couplings; and l do hereby declare the following to be a full, clear, and exact description ot' the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to hose couplings, more particularly to couplingsused in con.- nection with tire intlating pumps to attach the pump hose to the tire valve.

An object ot the present invention is to provide a novel coupling which may be easily and quickly applied, will clamp the valve seeurel y whereby leakage is prevented, and finally will not be displaced from operative position during the inilating operation.

With the above objects in Iview the invention consists ot' certain novel details ot' construction and combination ot parts here inafter fully described and claimed, it being understood that various modifications may be made in the minor details 'of construction within the scope of the appended claims.

In the accompanying drawi g forming part of this specilication ,-Figure 1 is a fragmentary view in elevation of a tire showing my improved coupling applied to' the valve thereof, the coupling being shown in section Fig. .2 is a fragmentary longitudinal sectional view of {lie/flexible nozzle Fig. l a perspective view ol the coupling sleeve. y

Referring now to the drawing in which like characters of reference designate siini.

lar parts, l() designates a pneumatic tire having an intiating valve 11 otl ordinary construction. l

The valve engaging device comprising the lsuloject-matter of this invention consists ot a hose 12 the wall of which is thickened near the tip with a resultant ilare 123 to the outer tace and constriction 14 in the bore,

the walllbeing from thence tapered in' thickness with a resultant tlare l5 to 'the bore and constnction 1G to the outer face, this construction forming a circumferential rib 17 in the bore and a circumferential rib 'I8 on the outer face in alinement with the rib in Ithe bore. The nozzle thus vloi-ined is adapted to be slipped down on the valve I, CARL C. ScnUL'r-z, 'a citizen of the United States, residing at casing of the tire until the circumferential rib of the bore eiigages underneath the cess of the casino:

For locking the nozzle in the position jiist described, I provide a sleeve 19 which is lared outwardly at both ends as shown at 2O and furthermore provided .on the op'- posite sides with projecting ingers'l which torni finger rests for manipulating the sleeve. This sleeve is slidably fitted on the nozzle below the external circumferential rib, and is ot such diameter as 'to conipress the nozzle at said rib as shown in Fiv. 1. The sleeve vtightly clamps the tip of` the nozzle to the valve easing below the boss y thereof' and positively prevents retrograde movement oi the tip over the boss during the infiating operation.

By virtue of the novel construction oi" coupling above deseribed'it will apparent without further eX Sianation that the cou pling may quickly by a simple manipulation of the sleeve through the instruinentality or. the lingers thereon, and that the coupling will so tightly7 bind upon 4the valve casing as to prevent leakage and also prevent displateinentI ot the coupling during' the inilating operation.

For holding the sleeve against escape iroin thenozzle l provide a pair `ot' upstauding spring arms having rounded jaws 23 on their inner faces near their tips for engagement with opposite sides of the nozzle. above the circumferential rib 18, the latter ohsti-noting the passage o1 the jaws thereover aud 'forming a stop which positively pre vents escape of the sleeve.

1. A hose coupling including a flexible nozzle having a projection in the bore and having a projection on the outer wall near the projection in the bore, and a sleeve en circling the nozzleon one side of the'oiite'r projection and adapted to compress the nozzle at said outer projection, and spring arms projectingl 4from one edge of the sleeve'hav ing rounded jaws engaging said nozzle' rearbe applied or removed wardly of said outer projection and serving to prevent escape of said sleeve from said nozzle.

,2. [i .hose coupling including a i'lexible nozzle having the wall thickened near the tip with a resultant flare to the outer face 'and constriction in the bore` the wall being from thence tapered in thickness with a resnltan Hare to the'bcire vdie outer face, Whereb and constriction ro In y inner and ou'er ture,

ahmed circumferential ribs are formed on the Wall, and a sleeve having med @nds and having opposltely dispoged projecting iinigstiniony whereof, n'ix my signain presence of two Witnesses.

CARL C. SCH ULTZ.

VVitnes'ses S. K. ROSENRERGER, J. .(3. SIMS. 

